what are everyones thoughts and opinions on AV cables in the walls. For speaker cables : Do you just plaster over them ? Do you run them through conduit to protect them ? For HDMI i'm assuming these should be run through conduit. And then there would be the spare empty conduit or 2 with pull wire for future upgrades. I've found this site for conduit All Products : Cable Management Warehouse, CMW Ltd are there any other recommendations ? TIA